Tire construction



Feb. 6. 1923.

i 1,444,123. 0.1. HUMPHREY.

TIRE CONSTRUCTION.

FILED APR. T. m. z sHEETs-sHETzT1l Feb. 6, 1923. IIAMM'ZS. 0.1. HUVIPHREY. URE coNsTRucTloN.

man APE. 7. 1922.

2 SHEETS-SHEET 2^ CNN W/arra asses Patented Febbi, 192,3. llp "M0 i223 UNETED STATES PATENT @FFHCE l ORO J'. ,HUMPHREK 0F ELYRIA, OHIO. y

TIRE CONSTRUCTION. lApplication tiled April 7, 1922. Serial No. 550,267.

To all wlzmmz't may concern: cordance with my invention, the tread pore it known that I, OnsoN J HUMPHREY, tion thereof is formed with a, circumferena citizen of the United States, residing at tial groove 2 and seated within the circum- 55 Elyria, in the county of Lorain and State of ferential groove 2 and removable therefrom Ohio, have invented new and useful Imis a tread section 3, the outer surface of provements in Tire Constructions, of which which may be either of the non-skid type or the following is a specification. smooth. ln carrying out the present invention `it is The side edges of the removable section 3 60 my purpose to provide a construction of project beyond the Walls of the groove as at l0 pneumatic. tire wherein the tread section 4and`overlie the tread portion of the body may be detached from the body or carcass 1 contiguous to the side walls of the groove of 'the tire whenever the tread section has 2 so as to protect such side walls and at the become worn and wherein such worn tread Same time present an uneven broken surface 65 section may be replaced by a new tread. lt thereby preventing sand, stones and the like 1s also my purpose to provide a. construction from enterlng the groove between thebody v 40 tionin position olithe carcass. Having described my invention, what l of pneumatic tire 4wherein the tread section portion and the tread section.

may be secured to the body portion'vor car- The side edges of the section 3 are prof cass of the tire in such manner as to elimivided with laterally extending V-shaped lugs 70y nate creeping of the tread section on the 5 below the overlapping portions and these carcass. e ll-shaped lugs engage in V-shaped notches 6 Furthermore I aim to provide a' pneuformed in the walls of the groove 2. matic construction which may be manufacrlhese lugs and notches act to prevent tured and marketed atsmall cost and wherecreeping of the tread section '2 on the body 75 in the treadsection may be renewed as often 1 lof the tire and lock the tread section to the as necessary without the expense of rebody, and in the event of relative circumfertreading as is now generally done and until ential movement of the tread and body a the body portion or carcass of the tire is wedging action will be set up between theV completely worn out. i V-shaped notches and the grooves, thereby 8U With the above recited object in view eliminating the possibility of creeping of and others of similar nature the invention the tread on the body.

resides in the construction, combination and From the foregoing description taken in arrangement of parts setlforth in and fallconnection with the accompanying drawings, l ing within the scope of the appended claim. it will be seen that I have prov1ded a tire 35 Inv the accompanying drawings and a removable tread section therefor which Figure 1 is a side elevation of a pneumay be quickly detached from the body pormatic tire constructed in accordance with my ltion of the tire whenever it is necessary to invention, partsshown in section. y renew the tread section, thereby prolonging Figure 2 is a cross sectional view through the life of a tire as a whole and enabling the 90 the same, showing the removable tread secbody portion to be completely worn out.

Figure 3 is a similar view showing a tread claim and desire to secure by Letters-Patent, section removed. is z- A `Figure 4 is a cross sectional'view through A tire comprising a carcass or body por- 95 the removable tread section. tion having a groove in the tread portion Figure 5 is a plan view of the ycarcass thereof and formed with V-shaped notches showing the groove or channel therein. in the side walls of said groove, said notches Figure 6 is an inverted plan view of the opening' into the groove and a tread portion removable tread Sectio -in saidgroove removable therefrom and 100 Referring to the drawings in detail, 1 deshaving the side edges thereof formed with ignates the body portion or carcass of a laterally extending V-shaped lugs engagepneumatic tire. This body portion or-carable in said notches respectively, whereby cass is of the usual construction and, in accreeping of the tread sections around the body will be eliminated, and a wedging action set up in the event of relative circumferential -movement of the tread and body, the side edges of said tread portion project- 5 ing beyond the walls of the groove and overlying said portion of the body contiguous to the side Wells ofthe groove, so as to protect such side Walls and present an uneven surface, whereby the entrance of foreign matter between the body portion and the tread lsection will be eliminated.

In testimony whereof, I aHiX my signature.

ORSON J. HUMPHREY. 

